Import TCL OO version 1.0.1 as devel/tcl-tclOO
Originally at WIP.

TclOO is a core for other TCL OO extensions and basic TCL OO framework.

Tool Command Language (Tcl) is an interpreted language and very portable
interpreter for that language. Tcl is embeddable and extensible, and has been
widely used since its creation in 1988 by John Ousterhout.